Means for use in the photographic production of typographical printing surfaces



Jan. 19 1926. 1,570,424

J. N. BANKS MEANS FOR USE IN THE PHOTOGRAPHIC PRODUCTION OF TYPOGRAPHICAL PRINTING SURFACES Filed Jan. 5. 1924 2 Sheets-Sheet 1 fig 1.

Jan. 19 1926. 1,570,424

J. N. BANKS MEANS FOR USE IN THE PHOTOGRAPHIC PRODUCTION OF TYPOGRAPHICAL PRINTING SURFACES Filed Jan. 5. 1924 2 Sheets-Sheet 2 sheet or plate of gla-ss,-celluloi Patented Jan. 19, 1926.

UNITED STATES'PATENT OFFICE.

JOHN NELSON BANK S, OF LONDON, ENGLAND, ASSIGNOB TO LINOTYPE AND IA- CHINEBY LIMITED, OF LONDON,

MEANS FOR USE IN THE PHOTOGRAPHIC PRODUCTION OF TYPOGRAPHICAL PRINTING ENGLAND, A BRITISH comrm.

SURFACES.

Application filed January 3, 1924. Serial No. 684,113.

To all whom it may concern:

Be it known that. I, JOHN NELSON BANKS, a British subject, and residing at 9 Kingsway, London, England, have invented new and" useful Improvements in or Relatin to Means for Use in the Photographic Pro uction of Typographical Printing Surfaces,of which the following is a' specification.

This invention relates to means for use in the photographic production of typographical printing surfaces and particularly matter which is divided lnto columns as isithat of newspapers and the like.

It consists primarily of a novel means of mounting strips of film bearing representations of the matter which is to be re roduced on the printing surfaces, and inci entally for effecting this in such manner as to afford ready facility for making corrections of copy in the early stages of the operatlon.

For attaining these results in accordance with the said invention, there is rovided aor other suitable transparent material (hereinafter termed a glass plate) in which are partially embedded parallel metal or equivalent rods at distances apart corresponding to or, it may be, more or less than the width of the columns of printed matter to be ultimately produced. These rods at their embedded edges, are enamelled or otherwise prepared so that a photograph thereof will result in the production on the printing surface, of lines which will, in the printed matter, produce the lines separating adjacent columns, and, at their-opposite edges which project beyond the respective surface of the glass plate, the said rods are each provided with a series of pins or studs by which the attachment of the film strips to the said plate is effected.

The invention will now be more particularly described by reference to the accompanying drawings in which Figure 1 is a front view of part of one of the improved devices, with the film strips attached thereto;

Figure 2 is a rear view with the backing removed;

Figure 3 is a same;

Figure 4 is a view of a portion of the film strip;

transverse section of the Figure 5 is a similar view of a modification of the said film, and

Flgure 6 is a view similar to Figure 1, drawnto a smaller scale, showing a plate embodying permanent features of the ultimate print.

1 represents the glass or equivalent plate, 2 the parallel rods partially embedded therein, 3 the pins or studs on the rods, and 4 the film strips which are attached to the plate 1.

The film strips are or may be substantially of column width, and have their two edges perforated as at 5 so as to admit of their belng readily attached to the pins 3.. This attachment is preferably of such a character as enables any of the film sections or pieces to be readily removed, for effecting correction or substitution of copy. The length of the film strips may be equal to, or less than, that of the ultimate printed columns, or where the copy is to be photographically reduced, the printed matter on the film strips 4 may occupy a space both wider and longer than the desired resultant copy. The above named printed matter on the film strips, is conventionally represented by the dotted lines 6.

Any length of film strip which is representative of a single column, may be formed either of a single piece or a plurality of pieces so that, in the latter case, where corrections are found to be necessary, any of these pieces can be readily removed and a corrected piece as readily substituted therefor. Or, any of such pieces can have a faulty or incorrect portion cut out therefrom to be substituted by a corrected or unblemished piece.

If desired, the glass plate 1, as exemplified in Figure 6, may have permanently mounted or depicted thereon matter which appears as a permanent feature of the ultimate print. In the example shown, such permanent features consist of the title 10 of a newspaper and horizontal and vertical rules 11, 12.

Adjacent edges to the film strips are shown in Figure 3, as one overlapping the other, which arrangement is necessary when each such edge is designed as shown in Figure 2, to engage with all the pins 3 appertaining to those two edges. This overlapping, however, can be avoided if the respective edges of the film, strips 4' beserrated or toothed as tions 5 occur on indicated in Fi re. 5 so that the perforai; in the teeth 7 for attachment to alternate pins, and so that the teeth of one strip can be intercalated between thoseof the next adjacent strip.

Thepresent invention is concerned with the actual production on a sensitized zinc, aluminium or other printing plate or surface of the photographic re resentation of the matter appearing on t e glass plate, which process may be carried out in any convenient manner after the whole form has been closely backed by a suitable sheet 8 prefera'bl of metal or wood groox'cd as at 9 to bri g e over the rows of pins 3 and painted white; it has nothing to do with the manner of producing the matter on the film strips themselves, as this process may be carrie out by any convenient means.

Having described my invention, I declare that what I claim and desire to Letters Patent is 1. In a method of photographically producing typo raphical printing surfaces "from film strips caring representations of the secure by type matter to be photographed, the steps which consist in attaching the film strips to a glass plate in l parallel columns, by the engagement of pe orations in their edges with pins or studs fast to the plate and photographing on to a sensitized printing plate the matter showing through the glass plate.

7 having toothed 2. In a method of hotographically r0- ducing1 typographica I printing sur aces from 1m strips, the steps according to claim 1 characterized by the employment of strips or serrated edges with perforations formed in the teeth, and by engaging such erforations with alternate pins or studs so t at the teeth on one film strip are intercalated between those of the next adjacent film strip. Y r

3. In amethod of photographically producing typographical printlng surfaces according to claim ,1, the photographing of column rules simultaneously with that of the type matter from rods embedded in the glass plate.

4. In a method of photographically producing typographical printing surfaces ac cording to claim 1, the photographing of permanent features of a. newspa er or the like simultaneously. with that o the t pe matter, from representations of said eatures depicted on the glass plate.

5. In or for the photographic produc-.

tion of typographical printing surfaces by a method according to claim 1, a glass plate having fast therein rows of pins or studs for engaging with the perforated edgesof the film strips.

In testimony whereof I have aflixed my signature hereto.

JOHN NELSON BANKS. 

